CVE-2021-41689

2022-06-2800:00:00

ubuntu.com

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

46.8%

JSON

DCMTK through 3.6.6 does not handle string copy properly. Sending specific
requests to the dcmqrdb program, it would query its database and copy the
result even if the result is null, which can incur a head-based overflow.
An attacker can use it to launch a DoS attack.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchdcmtk< 3.6.2-3ubuntu0.1~esm1UNKNOWN
ubuntu20.04noarchdcmtk< 3.6.4-2.1ubuntu0.1~esm1UNKNOWN
ubuntu22.04noarchdcmtk< 3.6.6-5ubuntu0.1~esm1UNKNOWN
ubuntu16.04noarchdcmtk< 3.6.1~20150924-5ubuntu0.1~esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	dcmtk	< 3.6.2-3ubuntu0.1~esm1	UNKNOWN
ubuntu	20.04	noarch	dcmtk	< 3.6.4-2.1ubuntu0.1~esm1	UNKNOWN
ubuntu	22.04	noarch	dcmtk	< 3.6.6-5ubuntu0.1~esm1	UNKNOWN
ubuntu	16.04	noarch	dcmtk	< 3.6.1~20150924-5ubuntu0.1~esm1	UNKNOWN